Build: Support --shared-ffmpeg to link with *.so for LGPL license. 4.0.126

README.md

@@ -180,6 +180,7 @@ For external services to work with SRS:
 
 ## V4 changes
 
+* v4.0, 2021-06-01, Support --shared-ffmpeg to link with *.so for LGPL license. 4.0.126
 * v4.0, 2021-06-01, Support --shared-srt to link with *.so for MPL license. 4.0.125
 * v4.0, 2021-05-31, Use [SPDX-License-Identifier: MIT](https://spdx.dev/ids/). 4.0.124
 * v4.0, 2021-05-28, Fix bugs for GB28181 and RTC. 4.0.123

trunk/3rdparty/ffmpeg-4-fit/libavcodec/libavcodec.v

@@ -0,0 +1,6 @@
+LIBAVCODEC_MAJOR {
+    global:
+        av*;
+    local:
+        *;
+};

trunk/3rdparty/ffmpeg-4-fit/libavcodec/log2_tab.c

@@ -0,0 +1 @@
+#include "libavutil/log2_tab.c"

trunk/3rdparty/ffmpeg-4-fit/libavcodec/reverse.c

@@ -0,0 +1 @@
+#include "libavutil/reverse.c"

trunk/3rdparty/ffmpeg-4-fit/libavutil/libavutil.v

@@ -0,0 +1,6 @@
+LIBAVUTIL_MAJOR {
+    global:
+        av*;
+    local:
+        *;
+};

trunk/3rdparty/ffmpeg-4-fit/libswresample/libswresample.v

@@ -0,0 +1,7 @@
+LIBSWRESAMPLE_MAJOR {
+    global:
+        swr_*;
+        swresample_*;
+    local:
+        *;
+};

trunk/3rdparty/ffmpeg-4-fit/libswresample/log2_tab.c

@@ -0,0 +1 @@
+#include "libavutil/log2_tab.c"

trunk/auto/depends.sh

@@ -637,6 +637,10 @@ if [ ! -f ${SRS_OBJS}/srtp2/lib/libsrtp2.a ]; then echo "Build libsrtp-2-fit sta
 # libopus, for WebRTC to transcode AAC with Opus.
 #####################################################################################
 if [[ $SRS_RTC == YES ]]; then
+    # Only build static libraries if no shared FFmpeg.
+    if [[ $SRS_SHARED_FFMPEG == NO ]]; then
+        OPUS_OPTIONS="--disable-shared"
+    fi
     if [[ -f ${SRS_OBJS}/${SRS_PLATFORM}/opus-1.3.1/_release/lib/libopus.a ]]; then
         echo "The opus-1.3.1 is ok.";
     else
@@ -644,7 +648,7 @@ if [[ $SRS_RTC == YES ]]; then
         (
             rm -rf ${SRS_OBJS}/${SRS_PLATFORM}/opus-1.3.1 && cd ${SRS_OBJS}/${SRS_PLATFORM} &&
             tar xf ../../3rdparty/opus-1.3.1.tar.gz && cd opus-1.3.1 &&
-            ./configure --prefix=`pwd`/_release --enable-static --disable-shared && make ${SRS_JOBS} && make install
+            ./configure --prefix=`pwd`/_release --enable-static $OPUS_OPTIONS && make ${SRS_JOBS} && make install
             cd .. && rm -rf opus && ln -sf opus-1.3.1/_release opus
         )
     fi
@@ -670,6 +674,10 @@ if [[ $SRS_FFMPEG_FIT == YES ]]; then
     nasm -v >/dev/null 2>&1; ret=$?; if [[ 0 -ne $ret ]]; then
         FFMPEG_OPTIONS="--disable-x86asm"
     fi
+    # Only build static libraries if no shared FFmpeg.
+    if [[ $SRS_SHARED_FFMPEG == YES ]]; then
+        FFMPEG_OPTIONS="$FFMPEG_OPTIONS --enable-shared"
+    fi
 
     if [[ -f ${SRS_OBJS}/${SRS_PLATFORM}/ffmpeg-4-fit/_release/lib/libavcodec.a ]]; then
         echo "The ffmpeg-4-fit is ok.";

trunk/auto/options.sh

@@ -40,9 +40,14 @@ SRS_PREFIX=/usr/local/srs
 SRS_JOBS=1
 SRS_STATIC=NO
 # If enabled, link shared libraries for libst.so which uses MPL license.
+# See https://github.com/ossrs/srs/wiki/LicenseMixing#state-threads
 SRS_SHARED_ST=NO
 # If enabled, link shared libraries for libsrt.so which uses MPL license.
+# See https://github.com/ossrs/srs/wiki/LicenseMixing#srt
 SRS_SHARED_SRT=NO
+# If enabled, link shared libraries for FFmpeg which is LGPL license.
+# See https://github.com/ossrs/srs/wiki/LicenseMixing#ffmpeg
+SRS_SHARED_FFMPEG=NO
 # whether enable the gcov
 SRS_GCOV=NO
 # whether enable the log verbose/info/trace level.
@@ -149,8 +154,9 @@ Experts:
   --sys-ssl=on|off          Do not compile ssl, use system ssl(-lssl) if required. Default: $(value2switch $SRS_USE_SYS_SSL)
   --ssl-1-0=on|off          Whether use openssl-1.0.*. Default: $(value2switch $SRS_SSL_1_0)
   --ssl-local=on|off        Whether use local openssl, not system even exists. Default: $(value2switch $SRS_SSL_LOCAL)
-  --shared-st=on|off        Use link shared libraries for ST which uses MPL license. Default: $(value2switch $SRS_SHARED_ST)
+  --shared-st=on|off        Use shared libraries for ST which is MPL license. Default: $(value2switch $SRS_SHARED_ST)
-  --shared-srt=on|off       Use link shared libraries for SRT which uses MPL license. Default: $(value2switch $SRS_SHARED_SRT)
+  --shared-srt=on|off       Use shared libraries for SRT which is MPL license. Default: $(value2switch $SRS_SHARED_SRT)
+  --shared-ffmpeg=on|off    Use shared libraries for FFmpeg which is LGPL license. Default: $(value2switch $SRS_SHARED_FFMPEG)
   --clean=on|off            Whether do 'make clean' when configure. Default: $(value2switch $SRS_CLEAN)
   --simulator=on|off        RTC: Whether enable network simulator. Default: $(value2switch $SRS_SIMULATOR)
   --build-tag=<TAG>         Set the build object directory suffix.
@@ -298,10 +304,10 @@ function parse_user_option() {
         --sys-ssl)                      SRS_USE_SYS_SSL=$(switch2value $value) ;;
 
         --use-shared-st)                SRS_SHARED_ST=YES           ;;
-        --shared-st)                    SRS_SHARED_ST=$(switch2value $value) ;;
-
         --use-shared-srt)               SRS_SHARED_SRT=YES          ;;
+        --shared-st)                    SRS_SHARED_ST=$(switch2value $value) ;;
         --shared-srt)                   SRS_SHARED_SRT=$(switch2value $value) ;;
+        --shared-ffmpeg)                SRS_SHARED_FFMPEG=$(switch2value $value) ;;
 
         --with-valgrind)                SRS_VALGRIND=YES            ;;
         --without-valgrind)             SRS_VALGRIND=NO             ;;
@@ -483,6 +489,7 @@ function regenerate_options() {
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --static=$(value2switch $SRS_STATIC)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --shared-st=$(value2switch $SRS_SHARED_ST)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --shared-srt=$(value2switch $SRS_SHARED_SRT)"
+    SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --shared-ffmpeg=$(value2switch $SRS_SHARED_FFMPEG)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --log-verbose=$(value2switch $SRS_LOG_VERBOSE)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --log-info=$(value2switch $SRS_LOG_INFO)"
     SRS_AUTO_CONFIGURE="${SRS_AUTO_CONFIGURE} --log-trace=$(value2switch $SRS_LOG_TRACE)"

trunk/configure

@@ -146,6 +146,7 @@ fi
 if [[ $SRS_FFMPEG_FIT == YES ]]; then
   LibFfmpegRoot="${SRS_OBJS_DIR}/ffmpeg/include"; LibFfmpegFile="${SRS_OBJS_DIR}/ffmpeg/lib/libavcodec.a ${SRS_OBJS_DIR}/ffmpeg/lib/libswresample.a ${SRS_OBJS_DIR}/ffmpeg/lib/libavutil.a"
   LibFfmpegRoot="${LibFfmpegRoot} ${SRS_OBJS_DIR}/opus/include"; LibFfmpegFile="${LibFfmpegFile} ${SRS_OBJS_DIR}/opus/lib/libopus.a"
+  if [[ $SRS_SHARED_FFMPEG == YES ]]; then LibFfmpegFile="-L${SRS_OBJS_DIR}/ffmpeg/lib -lavcodec -lswresample -lavutil -L${SRS_OBJS_DIR}/opus/lib -lopus"; fi
 fi
 
 # openssl-1.1.0e, for the RTMP complex handshake.

trunk/src/core/srs_core_version4.hpp

@@ -9,6 +9,6 @@
 
 #define VERSION_MAJOR       4
 #define VERSION_MINOR       0
-#define VERSION_REVISION    125
+#define VERSION_REVISION    126
 
 #endif